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Real numbers a and b satisfy

a + ab = 250

a - ab = -240

Enter all possible values of a, separated by commas.

 May 20, 2023
 #1
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a  +  (a*b) ==250,   

a  -  (a*b) == - 240, solve for a, b

 

Use substitution to get:

a ==5  and  b==49

 May 20, 2023

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